Cooling rolls



UNITED STATES PATENT OFFICE.

WILLIAM E. JONES, or BnAnDooK, PENNSYLVANIA.

COOLING ROLLS, JOURNALS, AND SHAFTS.

SPECIFICATION forming part of Letters Patent No. 243,708, dated July 5, 1881.

Application filed February 5, 1881.

To all whom it may concern:

Be it known that I, WILLIAM It. JONES, of Braddock, in the county of VAllegheny and State of Pennsylvania, have invented certain new and useful Improvements in Cooling Rolls, Journals, and Shafts; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which itappertains to make and use the same, reference being had to the accompanying drawings, which form a part of-this specification.

My invention relates to certain improvements in cooling rolls and their journals, as well as cooling shaft and machinery bearings in general, and also relates to a method of relieving the journal of excessive direct pressure by the interposition of a liquid cushion between the journal and its bearing.

The invention consists in constructing the bearing with a water-recess in communication with a supply of Water, and perforating the journal radially and axially, so that the water supplied to the recess will pass into the interior of the roll or journal, vthereby keeping up a constant circulation without the necessity of showering it all over the exterior of the roll.

It also consists in placing such a recess under the journal and introducing the water or other liquid under pressure, so that the pressure of the liquid will serve to support the journal and cushion it to the extent of pressure applied to the liquid in the recess.

My invention further consists in the method of reducing friction by partly or wholly supporting the shaft or journal upon a cushion ot' lubricatingoil under pressure'. y

Finally, the invention consists in the construction and combination of parts, substantiallyashereinafterfullydescribedandclaimed.

As the invention is more especially designed for cooling rolls and their necks, I will first illustrate it as applied and developed for that purpose.

In the drawings, Figure l is an end view of the lower box or brass apart from the housings of -a set of rolls. Fig. 2 is a plan view of same, and Fig. E5` is a vertical transverse section on line x x of Fig. 2. Fig. 4 is a longitudinal sectionl of a sheetroll and the brass 0r bearing in proper relation thereto. Fig. 5

(No model.)

is a transverse vertical section, showing inlets to center of roll. Fig. 6 is a sectional view, showing a shaft and its bearing, and indicating my mede of producing a cushion of oil under pressure.

Adesignates the skeleton-block for the bearing, usually made of cast-iron, having the rib 0r ilange a., forming the cavity for Babbitt metal which is to form the face ofthe bearing. In the center of this face is molded a raised bead, b, inclosing aT-shaped recess, c, shown, the wide part of the T sweeping transversely across the hearing A. Bead bis high enough to trim oft' tlush with the babbitted face.

In casting the block A, I cast in it a gas or other pipe, d, in such position that one end projects upwardly from block A and the other end delivers into the recess c at any desired point. After the seat metal has been poured in and all faced up I have a T-shaped trough or depression in the face of the bearing A. When the block A isset in the housings it is practically stationary, and the outer end of pipe d is connected to a convenient water-supply, and may also be fitted with a Stop-cock, c, as shown in Fig. 2. i

Roll B is cast with a central opening, f, from end to end, and into this cavity a number of radial holes, i, are bored in the neck or journal at such points as will fall Within the plane of rotation ot' the neck over the transverse portion of recess c. Opening f is plugged at the end in which holes t are located, but beyond them, and at the other end, is reduced to about the diameter of pipe d. When the roll is placed in position the neck rests over recess c and the holes are in circumferential line with the wide head of said recess. The Water being now admitted under pressure to pipe d, the recess ,aiinmediately ills, and as the roll rotates water flows through holes i as they successively come over the slot or recess c, and thence into openin g f, through which the Water passes and escapes at the other end. 'Ihe results are that the journal or neck and bearing are kept cool, the roll likewise, and the weight of the roll upon the bearing is to some extent relieved, for, with waterpressure at three hun` dred and fifty pounds per square inch and a surface in recess c equal to sixteen square inches, there would be an upward pressure on the neck amounting in all to ve thousand six hundred pounds. This not only aii'ords that amount ot' offset to the weight, but also diminishesvthe friction by the presence of the cushion of water.

Obviously the shape of the recess c may be modified, as also may the openingf, such as would be produced by coring out passages nearer the periphery ot' the roll. By making holesz' more numerous and clon gatin g the head of recess c the flow of water may be made continuous.

As applied to ordinary bearings for shafts and lother parts of machinery, my invention is illustrated by Fig. 6. Here I have a recess or cavity, c, as before, in the face of the bearing T, and communicating at its ends with the ports m and n, respectively, and these, in turn, vwith the respective pipes or tubes p and q, as shown. Pipe p is connected with a supply of oil under pressure, such as given by a pump or other means, and the flow passes up through m to c, to u, to pipe q, which conveys it to the oil-reservoir which supplies the pump. Thus l have an actual lubricant, and, in addition,

. the supporting-cushion ati'orded by the liquid under pressure.

As before stated, I consider the invention applicable to all kinds ot' shafts, journals, gudg cons, and other parts of machinery.

5o I claim as my invention- 1. The combination, with a horizontal journal or shaft, ot' a journal box or bearing therefor having at its bottom only a recess or trough exposed directly to said journal and containing a liquid under pressure, substantially as specilied.

2. The combination of a stationary journalbearing having a circumferential recess in its lower face, a horizontal journal or shaft having a central opening communicating through radial openings witn said recess, and a pipe openin g at one end into said recess and at the other end communicating with a supply of liquid under pressure, substantially as described. i

3. As a means of introducing water for cooling rolls, ajonrnal-bearing having at its bot tom a circumferential recess, a radially-bored roll-neck, and a roll having a hollow center, said recess being supplied with water under pressure, whereby the water is forced from the recess into the roll-neck, and thence through the roll, substantially as described.

In testimony that I claim the foregoing as my own I have hereto aixed my signature in presence ot' two witnesses.

WILLIAM R. JONES.

Witnesses:

J AMES J. MGTIGHE, T. J. McTIGnE, 

